MESON Chess Problem Database

Problem Display
PID: 174144 (8/4r3/1b2p2Q/1K5p/1p3p1r/4k3/2BR4/1Nn3N1 w - - 0 1)

Buchner, Richard

Arbeiter Schachzeitung, 1925

8/4r3/1b2p2Q/1K5p/1p3p1r/4k3/2BR4/1Nn3N1

#2

6 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ra7
      • 2.Qxe6#
    • 1...Rb7
      • 2.Qxe6#
    • 1...Rc7
      • 2.Qxe6#
    • 1...Rd7
      • 2.Qxe6#
    • 1...Rf7
      • 2.Qxe6#
    • 1...Rg7
      • 2.Qxe6#
    • 1...Rh7
      • 2.Qxe6#
    • 1...e5
      • 2.Qxb6#
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qe5#
      • 1...Se2
        • 2.Rxe2#
      • 1...Sd3
        • 2.Re2#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Bc7
        • 2.Qd4#
      • 1...f3
        • 2.Qxf3#
      • 1...e5
        • 2.Qxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 7
  • Sets
    • R(i);N_GUARD::QAR(F),XP(h)
    • P(h);OGATE::QAB(F),XB(g)
  • Actual
    • Q(F);N_PINP(d)
    • Threat
      • QAR2(F)
    • Vars
      • S(a);N_GUARD::R1(D),XS(a)
      • S(a);N_GUARD::R1(D)
      • B(g);N_GUARD::QAB1(F),XB(g)
      • B(g);N_GUARD::QAB1(F)
      • P(d);OGATE::QAR1(F),XP(d)
      • P(h);OGATE::QAB(F),XB(g)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).